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1.1 root 1: //
2: // nono
3: // Copyright (C) 2023 nono project
4: // Licensed under nono-license.txt
5: //
6:
7: //
8: // Nereid Ethernet/メモリ/USB 複合ボード (のうち Ethernet/バンクメモリ)
9: //
10:
11: #pragma once
12:
13: #include "device.h"
14: #include "monitor.h"
15: #include <array>
16:
17: class BankRAMDevice;
18: class NereidBoardDevice;
19: class RTL8019ASDevice;
20:
21: // Nereid 空間担当
22: class NereidDevice : public IODevice
23: {
24: using inherited = IODevice;
25:
26: public:
27: NereidDevice();
28: ~NereidDevice() override;
29:
30: bool Create() override;
31:
1.1.1.3 ! root 32: busdata Read(busaddr addr) override;
! 33: busdata Write(busaddr addr, uint32 data) override;
! 34: busdata Peek1(uint32 addr) override;
1.1 root 35:
36: // Nereid が1枚でもささっていれば true。
37: bool IsInstalled() const;
38:
1.1.1.2 root 39: // Board デバイス取得。
40: NereidBoardDevice *GetBoard(int id) const { return boards[id].get(); }
41:
1.1 root 42: private:
43: inline uint32 Decoder(uint32 addr) const;
44: DECLARE_MONITOR_CALLBACK(MonitorUpdate);
45:
46: // ボードの有無と配置場所 (有りなら $3 か $b、無しなら -1)
47: std::array<int, 2> loc {};
48:
49: std::array<std::unique_ptr<NereidBoardDevice>, 2> boards {};
50:
51: Monitor monitor { this };
52: };
53:
54: // Nereid ボード1枚分
55: class NereidBoardDevice : public IODevice
56: {
57: using inherited = IODevice;
58:
59: public:
1.1.1.3 ! root 60: explicit NereidBoardDevice(int n_);
1.1 root 61: ~NereidBoardDevice() override;
62:
63: bool Create() override;
64:
1.1.1.3 ! root 65: busdata Read(busaddr addr) override;
! 66: busdata Write(busaddr addr, uint32 data) override;
! 67: busdata Peek1(uint32 addr) override;
1.1 root 68:
69: // ネットワークが有効なら true を返す
70: bool IsNetEnable() const { return (bool)net; }
71: // バンクメモリの容量 [MB] を返す (負数の場合もあり)
72: int GetBankRAMSize() const { return ramsize_MB; }
73:
74: uint32 GetPage() const;
75:
76: private:
77: inline uint32 Decoder(uint32 addr) const;
78:
79: void SetPage(uint32 data);
80:
81: uint32 GetCtrl() const;
82: void SetCtrl(uint32 data);
83:
84: // 1枚目 or 2枚目
85: uint id {};
86:
87: // バンクメモリ容量 (負数あり)
88: int ramsize_MB {};
89:
90: // デバイス
91: std::unique_ptr<BankRAMDevice> bank /*{}*/;
92: std::unique_ptr<RTL8019ASDevice> net /*{}*/;
93: };
94:
95: static inline NereidDevice *GetNereidDevice() {
96: return Object::GetObject<NereidDevice>(OBJ_NEREID);
97: }
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